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Tap water quality report

Red Rock Wsc

EPA monitoring tested this supplier for 14 contaminants and detected 13. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

14
contaminants tested
13
detected
159
people served
0
health-based violations
Water source
SWP
Ownership
Local government
Counties served
Denton

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

0
health-based violations
147
violations on file
4
still open
ViolationTypeStatusPeriod
MR Monitoring Resolved 2025-10-01 → 2025-12-31
MR Monitoring Resolved 2025-10-01 → 2025-12-31
MR Monitoring Resolved 2025-10-01 → 2025-12-31
Other Monitoring Unaddressed 2025-07-01
MR Monitoring Unaddressed 2024-12-30
MR Monitoring Resolved 2013-10-01
MR Monitoring Resolved 2012-10-01 → 2012-12-31
MR Monitoring Resolved 2012-10-01 → 2012-12-31
MR Monitoring Resolved 2012-10-01 → 2012-12-31
MR Monitoring Resolved 2012-07-01 → 2012-09-30

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Copper
429.9 µg/L 33%
of the EPA limit 1300 µg/L
worst single sample: 537 µg/L
15/15 SYR4 2014–2018
Lead
8.54 µg/L 57%
of the EPA limit 15 µg/L
worst single sample: 8.9 µg/L
13/15 SYR4 2014–2018
Bromodichloromethane
8.602 µg/L
No EPA limit set
worst single sample: 10.1 µg/L
8/8 SYR4 2012–2019
Bromoform
3.1505 µg/L
No EPA limit set
worst single sample: 3.7 µg/L
8/8 SYR4 2012–2019
Chloroform
7.7145 µg/L
No EPA limit set
worst single sample: 7.9 µg/L
8/8 SYR4 2012–2019
Dibromochloromethane
8.417 µg/L
No EPA limit set
worst single sample: 9.6 µg/L
8/8 SYR4 2012–2019
Dichloroacetic Acid
5.485 µg/L
No EPA limit set
worst single sample: 5.8 µg/L
8/8 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
8/8 LCR 2024
TTHM
27.34 µg/L 34%
of the EPA limit 80 µg/L
worst single sample: 31.4 µg/L
8/8 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
10.485 µg/L 17%
of the EPA limit 60 µg/L
worst single sample: 10.8 µg/L
8/8 SYR4 2012–2019
Dibromoacetic Acid
3.38 µg/L
No EPA limit set
worst single sample: 3.4 µg/L
5/8 SYR4 2012–2019
Monochloroacetic Acid
3.84 µg/L
No EPA limit set
worst single sample: 3.9 µg/L
4/8 SYR4 2012–2019
Trichloroacetic Acid
1.1 µg/L
No EPA limit set
4/8 SYR4 2012–2019
1 contaminants tested, none detected
Monobromoacetic Acid

Utility contact

Contact
BURRHUS, LACY
Phone
903-445-8384
Email
harrisd@trinityra.org

Frequently asked questions about Red Rock Wsc

Is Red Rock Wsc tap water safe to drink?

EPA monitoring detected 13 contaminants in Red Rock Wsc's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Red Rock Wsc's water?

EPA monitoring detected Copper, Lead, Bromodichloromethane, Bromoform, Chloroform, and others. The full list with the level and data source for each is above.

How many people does Red Rock Wsc serve?

Red Rock Wsc reports serving 159 people in Texas, per its EPA record.

Has Red Rock Wsc had any water quality violations?

The EPA has 147 violations on file for Red Rock Wsc, of which 0 are health-based (a contaminant limit or required treatment was breached) and 4 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.